Next.js

Next.js is a full-stack React framework for building production-grade web applications with server-side rendering, static site generation, and API routes. It provides automatic code splitting, image optimization, font optimization, and built-in SEO capabilities through its metadata API. The framework handles the complex build and rendering infrastructure that would otherwise require significant custom configuration.

A defining feature is the flexibility to choose rendering strategies per route. Static pages are generated at build time for fast CDN delivery. Server-rendered pages generate fresh HTML on each request for dynamic content. Incremental Static Regeneration updates static pages in the background without rebuilding the entire site. The App Router introduced in Next.js 13 added React Server Components, allowing components to run exclusively on the server to reduce client-side JavaScript.

For web development teams, Next.js has become the default choice for React applications that need SEO, performance, and full-stack capabilities. Its tight integration with Vercel for deployment provides an optimized hosting path, though it deploys to any Node.js environment. The framework is used for marketing sites, e-commerce platforms, SaaS dashboards, and content-heavy applications where the combination of static and dynamic rendering provides both speed and flexibility.